Since the early 1980s, metal detector surveying conducted by amateur archaeologists has contributed significantly to archaeological research and heritage practice in Denmark. Here, metal detecting has always been legal, and official stakeholders pursue a liberal model, focusing on cooperation and inclusionrather than confrontation and criminalization. Like no other surveying method since the invention of the shovel, the metal detector has contributed to increasing enormously the amount of data and sites from metal-rich periods. Virtually all of the spectacular and ground-breaking discoveries of the past decades are owed to metal detectors in the hands of amateur archaeologists. And it is these finds and sites that today constitute one of the very foci of archaeological research. This article provides an over-view of the current status of liberal metal detector archaeology in Denmark 30 years after its inception,and attempts to identify the reasons why this popular hobby never developed into the problem it has become in other parts of the world. It concludes that the success of the liberal model in Denmark is the result of a very complex interplay of legislative, historical, cultural, and social factors. On this basis, it is discussed whether the Danish experience can be used as a source of inspiration in the necessary pro- gression towards a new legal agenda for responsible metal detector archaeology.